| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Headlamp aim out of alignment | 5 |
| Registration plate issues | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working |1.7.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear reflector missing red (4.8.2 (a) (ii)) | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Lower Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front suspension assembly component loose |2.3.1| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute not clear when flashing |1.5.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |